کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5156736 | 1500580 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acid-base synergistic flame retardant wood pulp paper with high thermal stability
ترجمه فارسی عنوان
کاغذ پالپ چوب مقاوم در برابر خوردگی شعله اسیدی با پایداری حرارتی بالا
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کلمات کلیدی
لیگنوسلولز، مقاله خمیر چوب، بازدارنده شعله، ترکیب سدیم اسید، پایداری حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Acid-catalytic degradation caused by acid source flame retardants is the main reason for a decline in thermal stability of flame-retarded lignocellulosic materials. In the present research, a guanidine phosphate (GP)/borax (BX) flame retardant system based on acid-base synergistic interaction was designed and used in wood pulp paper (WPP) to solve this problem. Results showed that the treated WPP obtained good flame retardancy with a limiting oxygen index (LOI) value of 35.7%. As a basic flame retardant, borax could chemically combine with the acids released by guanidine phosphate, thus decreasing the acidity of the system in the initial heating stage. In this way, acid-catalytic degradation is greatly retarded on the lignocelluloses to improve thermal stability (the temperature of maximum degradation peak from 286 °C to 314 °C). Meanwhile, borax was also advantageous to form a denser and firmer condensed phase through reinforcement of the acid-base reaction product, borophosphates, allowing it to provide a protective barrier with higher quality.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 178, 15 December 2017, Pages 123-130
Journal: Carbohydrate Polymers - Volume 178, 15 December 2017, Pages 123-130
نویسندگان
Ning Wang, Yuansen Liu, Changan Xu, Yuan Liu, Qi Wang,